Malformed robots.txt causing issues with indexing

Yes.

  1. Access: https://discuss.grakn.ai/admin/customize/robots

  2. Remove:

    User-agent: *
    Disallow: /
    Noindex: /

  3. Go to Google Webmaster Tools: https://www.google.com/webmasters/tools/robots-testing-tool

Choose a verified property and submit robots.txt again to Google.

I think it should work.